Functional Overview
The CY7C630/1XXA is a family of 8-bit RISC One Time Programmable (OTP) microcontrollers with a built-in 1.5-Mbps USB Serial Interface Engine (SIE). The microcontroller features 35 instructions that are optimized for USB applications. In addition, the microcontroller features 128 bytes of internal RAM and either 2 or 4 Kbytes of program memory space. The Cypress USB Controller accepts a 6-MHz ceramic resonator as its clock source. This clock signal is doubled within the chip to provide a 12-MHz clock for the microprocessor.

Features
• Low-cost solution for low-speed USB peripherals
   such as mouse, joystick, and gamepad
• USB Specification Compliance
   — Conforms to USB 1.5 Mbps Specification, Version 1.1
   — Supports 1 device address and 2 endpoints
      (1 control endpoint and 1 data endpoint)
• 8-bit RISC microcontroller
   — Harvard architecture
   — 6-MHz external ceramic resonator
   — 12-MHz internal operation
   — USB optimized instruction set
• Internal memory
   — 128 bytes of RAM
   — 2 Kbytes of EPROM (CY7C63000A, CY7C63100A)
   — 4 Kbytes of EPROM (CY7C63001A, CY7C63101A)
• I/O ports
   — Integrated USB transceiver
   — Up to 16 Schmitt trigger I/O pins with internal pull-up
   — Up to 8 I/O pins with LED drive capability
   — Special purpose I/O mode supports optimization
      of photo transistor and LED in mouse application
   — Maskable Interrupts on all I/O pins
• 8-bit free-running timer
• Watch dog timer (WDT)
• Internal power-on reset (POR)
• Instant-On Now™ for Suspend and Periodic Wake-up Modes
• Improved output drivers to reduce EMI
• Operating voltage from 4.0V to 5.25 VDC
• Operating temperature from 0 to 70 degree Celsius
• Available in space saving and low cost
   20-pin PDIP, 20-pin SOIC, 24-pin SOIC and 24-pin QSOP packages
• Industry standard programmer support